Black Acrylic Cat Yin Yang Picture Plugs - Sold as a Pair (2g (6mm)) Go to amazon.com Related posts Top 12 best 2g tunnels cat: Which is the best one in 2022? FeatureMade of AcrylicResin overlay over pictureHandmade in our shop.Screw OnInternally Threaded DescriptionMade of Acrylic, Resin Overlay over picture. Screw On, Internally Threaded.